rust/compiler/rustc_mir_dataflow
bors 2b90614e94 Auto merge of #127036 - cjgillot:sparse-state, r=oli-obk
Make jump threading state sparse

Continuation of https://github.com/rust-lang/rust/pull/127024

Both dataflow const-prop and jump threading involve cloning the state vector a lot. This PR replaces the data structure by a sparse vector, considering:
- that jump threading state is typically very sparse (at most 1 or 2 set entries);
- that dataflow const-prop is disabled by default;
- that place/value map is very eager, and prone to creating an overly large state.

The first commit is shared with the previous PR to avoid needless conflicts.

r? `@oli-obk`
2024-07-03 18:52:04 +00:00
..
src Auto merge of #127036 - cjgillot:sparse-state, r=oli-obk 2024-07-03 18:52:04 +00:00
Cargo.toml Replace custom_encodable with encodable. 2023-11-22 18:37:14 +11:00
messages.ftl Ensure Fluent messages are in alphabetical order 2023-05-25 23:49:35 +00:00